Study on Target System of Engineering Project Based on Construction Reliability

According to target system of engineering project, the definition of construction reliability of engineering project was proposed that was the ability of safely getting required project quality under restrictive conditions of time and cost in process of engineering construction. In the light of compositionality and hierarchy of construction system, pyramid model was built and based on BDD algorithm, disjointed minimal path set method was introduced to calculate construction reliability. The result provides theoretical basis for later research on construction project target optimization and it is useful try for the combination of system reliability and project management.